A cyst is a structure or mass that consists of a cellular lined sac. It is typically filled with fluid but may be filled with solid material. It can be congenital, traumatic, or acquired. They may develop nearly anywhere in the body and usually require complete excision for eradication or they are likely to recur. Fluid filled sacs that are not cellular lined may be called pseudo-cysts.
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2

One Factor:
In diagnosis of ganglions, we often do transilluminate the lesion with a small penlight. This alone, however, is not diagnostic. We evaluated the nature of the lesion, associated symptoms, its location and its features on clinical examination coupled with necessary imaging and sometimes pathology before making the final call.
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4

Inflamed tendon:
Tendons run in sheaths, similar to the cables on a bicycle. Sometimes a minor trauma can cause the sheath to become inflamed and a small cyst can pop up. This is called a ganglion cyst. They are usually painless and sometimes go away on their own. If it isn't bothering you then you likely don't need to do anything with it. If it is bothering you, see your doc about removing it.
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6

Synovial cyst:
Rupture of the synovium which is the cushion between the small bones of the wrist. The fluid that leaks out is then contained by the body and forms a cyst connected to the defect.
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7

Wrist mass:
Mass on top or undersurface of wrist (most common location). Mass may grow in size. Mass may be painful or not. Sometimes the mass may interfere with range of motion due to size. If symptomatic may be removed with surgery if it does not respond to rest.
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8

Yes:
Depending on where the cyst is, you may have some pain or discomfort but it won't keep you from exercising. If you are in doubt, ask your pcp or orthopedist (hand surgeon). Usually found in the wrist. Can occur elsewhere.
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9

See orthopedic Dr.:
There are not many problems associated with the wrists short of bony abnormalities. One common problem that can occur at the level of the wrists or coming from any joint is called a ganglion cyst. Ganglion cysts are not usually associated with much pain or discomfort until they become large. They extends from the joint space. It's, like blowing up a tiny balloon from between your knuckles. These often bust when a person bumps them. They will reoccur unless they are surgically tied off. I suggest you see an orthopedic surgeon to further assess and evaluate.
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10

Various:
Many ganglion cysts do not hurt and are only demonstrate a mass in the affected area. Depending on the location of the cyst, and size, pain can accompany the cyst. It is also possible that the cyst can compress nerves or other structure.
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Commonly associated with trauma or arthritis the joint capsule becomes stretched. As the body produces additional synovial fluid to lubricate the joint the loosened joint capsule stretches and fills with fluid...The gnaglion. As the body produces more or less the size of the ganglion will fluctuate. Best treatment includes surgical removal.
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